More on: can't shrink an ext2 partition - what gives?

[Floydsmith]

In a message dated 10/10/06 7:39:49 AM Eastern Daylight Time, Floydsmith writes:

> Subj: can't shrink an ext2 partition - what gives? 
>  Date: 10/10/06 7:39:49 AM Eastern Daylight Time
>  From: Floydsmith
>  To: address@hidden
>  CC: Floydsmith
>
>
>
> e2fsck /dev/hda4
> e2fsck 1.38 (30-Jun-2005)
> /: clean, 59002/397312 files, 1264604/1582402 blocksa
>
> Then run parted /dev/hda
> Using /dev/hda
> (parted) u kb
> (parted) p
> Disk geometry for /dev/hda: 0kB - 20020396kB
> Disk label type: msdos
> Number  Start   End     Size    Type      File system  Flags
> 1       32kB    8126576kB 8126544kB primary   fat32        boot
> 2       8126577kB 8398010kB 271434kB primary   linux-swap
> 4       8398011kB 10018391kB 1620380kB primary   ext2
> 3       10298051kB 15389498kB 5091448kB extended               lba
> 5       11893787kB 13464783kB 1570996kB logical   ext2
> (parted) resize 4 8398011kB 10971491kb
> Error: File system has an incompatible feature enabled.
> (parted)
> (parted) check 4
> Error: File system has an incompatible feature enabled.
> (parted)
>
> What feature is this - how do I get rid of it?
>
> floyd,


Now, as an experiment, I created an empty partition 6 (type id 83), formated it with:
mkfs.ext2 -O none -L /3 /dev/hda6
(notice the "-O none") and then ran "parted /dev/hda check 6". It passed, that is, NO "Error: File system has an incompatible feature enabled." reported, Then I installed a very minimal fedora core 5 root onto it. I did NOT let the installation reformat the partition or create any others. Immediatelly after the install I checked again and sure enough the partion failed. Again, "what is setting the incompatible feature enabled" and how to I either prevent this or get rid of it after the fact?

By the way, my parted ver is: 1.6.25
My mkfs.ext2 ver. is: 1.38 (30-Jun-2005)

Please "cc" me. I just entered the "list" but it MAY have NOT taken effect yet.

Floyd,